D'Addario Classical Guitar Pro Arte Composites Normal, .028 - .044, EJ45C5musicboxtedMarch 14, 2011I have been using these for over 20 years. I tried Hannabachs, Savarez and Augustine Golds, but came back to these. They stay in tune and retain their tone qualities after quite a bit of use. They are also very affordable! What else can one say?

NOTE

DESCRIPTION

DIAMETER INCHES

TENSION LBS

1st E

Clear Nylon

.0280

15.3

2nd B

Clear Nylon

.0322

11.6

3rd G

Composite Polymer

.0360

12.4

4th D

Composite Core

.028

14.3

5th A

Composite Core

.035

14.6

6th E

Composite Core

.044

15.2

"Pro

·Arté classic guitar strings are just that -- classics. The treble strings are made from a harder formulation of nylon, and are precision extruded to guarantee a string that's even in diameter from one end to the other. And as an added quality-control measure, every single Pro·Arté treble string is hand-fed through a laser micrometer and sorting station to ensure that the string in your package tunes to the exact playing tension you're looking for.

Nylon is extruded in molten form; this process yields material that can vary in diameter by plus or minimum one thousandth of an inch. Though this difference is only about one fourth the thickness of a human hair, professionally trained classical guitarists can sense the contrast in string tension when the diameter varies by small amounts. The solution to the problem presented by this tension variable was to apply the latest technological advancements to the building of a sorting station, which utilizes a laser micrometer and a high-speed computer. The laser takes nearly 200 measurements on each string, compares and averages the data, and drops the measured string into the proper tension bin.

What's the end result? Every time you purchase your favorite tension of Pro

·Arté classics, you get the same exact string diameter to within four ten-thousandths of an inch.

The wound strings in the Pro

·Arté line are wound with silver-plated copper or 80/20 bronze wires on D'Addario's own computer-controlled automatic winding machinery and are available in 4 different tensions for classic guitar.